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HomeMy WebLinkAboutTED4003721.4NOTE: (0 O O CM T' 0 W Q 0 W W > z O z a w Q FILTER FABRIC MATERIAL 60" WIDE ROLLS. USE STAPLES OR WIRE RINGS TO ATTACH FABRIC TO WIRE. F2" BY 2" 14 GA. WIRE FABRIC OR EQUIV. FILTER FABRIC Mt-­­ 2" BY 2" BY 14 C FABRIC OF EQUIV. PROVIDE 3/4" - 1.5" WASHED GRAVEL BACKFILL IN TRENCH AND ON BOTH SIDE OF FILTER FENCE FABRIC ON THE SURFACE. 2" BY 4" WC, ,L, ..� ALT: STEEL FENCE POSTS. BRUSH BARRIER N TS WIRE —BACKED SILT FENCE, - STAKED HAYBALES WRAPPED WITH FILTER FABRIC, OR EQUIVALENT DIVIDER NOTES: 1. FOR SHEET RUNOFF OR FOLLOWING DISCHARGE FROM A SEDIMENT TRAP OR POND. 2. MAXIMUM SLOPE STEEPNESS PERPENDICULAR TO FENCE LINE IS 1:1. 3. MAXIMUM SHEET OR OVERLAND FLOW PATH LENGTH TO THE FENCE OF 100 FT. 4. IF 50% OR LESS OF THE SOIL, BY WEIGHT, IS FINE PARTICLES SMALLER THAN THE U.S. STANDARD SIEVE NO. 200, THE EOS SHOULD BE EQUAL TO OR SMALLER THAN THE SIEVE SIZE THAT 85% OF THE SOIL CAN PASS THROUGH. 5. THE TRENCH SHALL BE BACKFILLED WITH 3/4" MINIMUM DIAMETER WASHED GRAVEL. 5. FILTER FABRIC FENCES SHALL BE REMOVED WHEN THEY HAVE SERVED THEIR USEFUL PURPOSE, BUT NOT BEFORE THE UPSLOPE AREA HAS BEEN PERMANENTLY STABILIZED. 6. FILTER FABRIC FENCES SHALL BE INSPECTED IMMEDIATELY AFTER EACH RAINFALL AND AT LEAST DAILY DURING PROLONGED RAINFALL. ANY REPAIRS SHALL BE MADE IMMEDIATELY. FILTER FABRIC FENCE DETAIL RISER PIPE (PRINCIPAL SPILLWAY) OPEN AT TOP WITH TRASH RACK PER FIG. 4.4.4E DEWATERING DEVICE (SEE RISER DETAIL)- DEWATERING ORIFICE CREST OF 6' MIN. WIDTH EMERGENCY SPILLWAY / f 1' MIN. ______ __ __- — ___�__—_ _ �y --- ,, ______-- ------ -.------------ -------------- M--- -- `-- — __-_ -- CONCRETE BASE (SEE RISER DETAIL) TEMP. POND CONTROL CATCH BASIN PROTECTION EMBANKMENT COMPACTED 95%. PERVIOUS MATERIALS SUCH AS GRAVEL OR CLEAN SAND SHALL NOT BE USED. DISCHARGE TO STABILIZED CONVEYANCE, OUTLET OR LEVEL SPREADER OFFE ENGINEERS 13932 SOUTHEAST 159TH PLACE RENTON, WASHINGTON 98058 PHONE: 425-260-3412 CONTACT: DARRELL OFFE, P.E. rs ro ti a� Z° -off 27460 D�Fss 4NALR���\ 03/18/2014 TEMP. POND - TOP=36.0 OUTLET=32.5 SEE CONTROL DETAIL AT BOTTOM SURFACE AREA REQUIRED=302 SQ. FT. SURFACE AREA PROVIDED=1335 SQ. FT. �1 ••• • • FILTER FABRIC FENCING/ `� W TYPICAL v UN —WORKED AND DISTURBED AREAS TO BE HYDROSEEDED AND COVERED WITH STRAW/WOOD CHIPS FOR EROSION CONTROL (TYPICAL) PROJECT WILL REQUIRE SWPPP PERMIT FROM D.O.E. WITH CERTIFIED EROSION CONTROL INSPECTIONS AND MONITORING. PERMIT TO BE OBTAINED FROM WASH. STATE DEPT. OF ECOLOGY REVISION SURVEYED DESIGNED: D.L. OFFE, P.E. DRAWN: D.L. OFFE, P.E. CHECKED: SCALE ONE INCH AT FULL SCALE IF NOT ONE INCH SCALE ACCORDINGLY EXISTING UTILITY LOCATIONS SHOWN HEREON ARE APPROXIMATE ONLY. IT SHALL BE THE CONTRACTOR'S RESPONSIBILITY TO DETERMINE THE EXACT VERTICAL AND HORIZONTAL LOCATION OF ALL EXISTING UNDERGROUND UTILIITES PRIOR TO COMMENCING CONSTRUCTION. NO REPRESENTATION IS MADE THAT ALL EXISTING UTILITIES ARE SHOWN HEREON. THE ENGINEER ASSUMES NO RESPONSIBILITY FOR UTILITIES NOT SHOWN OR UTILITIES NOT SHOWN IN THEIR PROPER LOCATION. CALL BEFORE YOU DIG: 1-800-424-5555 TYPICAL R 372 SEE SHEET 9 FOR ADDITIONAL CLEARING, GRADING AND EROSION CONTROL FOR LOT 13 ,EIT, : NAVD 1W HORIZONTAL: NAD 19W/1991 DATUM a.4 CUT OFFL, SWALES W/ROCK `CHECK DAMS (TYPICAL) GRAPHIC SCALE 0 15 30 60 t inch = 30 feet :L: OMMENDED FOR APPROVAL By: Date: L l� By: Date: By: Date: By: Date: ::- CITY OF LAKE WASHINGTON VIEW ESTATES 08/15/2012 AN RENTON GREG FAWCETT A °I` EROSION CONTROL PLAN DA�NG W: Planning/Building/Public Works Dept.